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2 years ago

The reptile house at the zoo has 9 crocodiles, 12 tortoises, and 36 snakes. What is the ratio of snakes and crocodiles

Mathematics

1 answer:

Brilliant_brown [7]2 years ago

4 0

The answer is 3:4:12

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Can 1 and 3/20 can be simplified?

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One and 3/20 can't be simplified

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Nookie1986 [14]

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Find the area between y=(x-2)ex and the x-axis from x=2 to x=4.

mojhsa [17]

Answer:

$e^4+e^2$

Step-by-step explanation:

It can be found by integral.

First let's find the intersection points.

$(x-2)e^x = 0$

Only intersection point is x = 2.

And it is asked to find the area in the interval (2, 4).

$\int\limits^4_2 (x-2)e^x \,dx=?$

We will use integration by parts.

$x-2=u\\dx=du\\e^xdx=dv\\e^x=v$

$\int\limits^4_2 (x-2)e^x \,dx=uv-\int vdu=(x-2)e^x-\int e^xdx=(x-2)e^x-e^x=\\\\=(x-3)e^x|^4_2=(4-3)e^4-(2-3)e^2=e^4+e^2$

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2 years ago

If sin 115 degrees≈ 0.91 and cos 115 degrees = -0.42, then sin -115 = ____ and cos -115 degrees =_____

mafiozo [28]

Answer:

If sin 115 degrees≈ 0.91 and cos 115 degrees = -0.42, then sin -115 = -0.91 and cos -115 degrees = 0.42

Step-by-step explanation:

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2 years ago

Change to a mixed number. 13/3

miss Akunina [59]

Answer:

4 and 1/3

Step-by-step explanation:

3 can go into 13 4 times with one left over

my rank is expert

hope this helps

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2 years ago